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1 jan 1722 ano - 242 People variolated in Boston

Descrição:

Mather and Boyleston advocate for variation and help variolate people in Boston. Those that were variolated had a mortality rate of 2.5% compared to 15-20% for the general population

Adicionado na linha do tempo:

From A to Zika: Diseases and Medical Advancements Through Time

ByClaire
14 dez 2018
1
0
1209

Data:

1 jan 1722 ano
Agora
~ 304 years ago
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